linux-kernel - Re: [syzbot] [fs?] BUG: sleeping function called from invalid context in __bread

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Message-ID: <20240308221621.kcux2edaxyrk4edu@quack3>
Date: Fri, 8 Mar 2024 23:16:21 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+5869fb71f59eac925756@...kaller.appspotmail.com>
Cc: axboe@...nel.dk, brauner@...nel.org, hch@...radead.org, jack@...e.cz,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [fs?] BUG: sleeping function called from invalid
 context in __bread_gfp

On Sat 24-02-24 18:28:01, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@...e.cz>
> Date:   Wed Nov 1 17:43:10 2023 +0000
> 
>     fs: Block writes to mounted block devices
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=164a0a54180000
> start commit:   a92b7d26c743 Merge tag 'drm-fixes-2023-06-23' of git://ano..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2cbd298d0aff1140
> dashboard link: https://syzkaller.appspot.com/bug?extid=5869fb71f59eac925756
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17fa78c7280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17e73723280000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

Makes sense:
 
#syz fix: fs: Block writes to mounted block devices

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR